If you had the 4th generation DUO test done at 28+ days post exposure, it would be CONCLUSIVE for HIV. If you had this test, you do NOT need to retest as it detects both antibodies AND antigens.
None of your symptoms correspond to HIV.
They can be attributed to a cold, the flu, your IBS and/or anxiety.
If all of your tests are negative, (HIV AND STD'S) there is no reason to ask this other woman to test since she obviously did not infect you with anything.
If the PA said he was using a 4th generation test, then he was no doubt referring to the DUO. If you are still doubtful, you can call and talk to someone about your specific test. Lucky for you you're in NYC........I'm sure they used the correct and CONCLUSIVE tests.
I would be totally assured I was negative, but you gotta do what YOU gotta do to move on down the road. No shame in that.
Always play safe!
4th week testing is not considered conclusive by anyone
I would suggest take a 6 week test which in many coutries (germany,geeece etc) is considered conclusive under the following circumstances
Not infected with hiv 2 or a rare strain of hiv 1
You dont suffer from immnudefincies that will not allow the productiom of antibodies
As for the rest of yohr questions
Viral load test are accurte but they are not a stand alone test
You should have faith in your results, although its better be 100% safe
I dont think you should ask the girl to test the chanches of her having hiv are minimal.